Friday, 28th—We packed our knapsacks ready to be sent to La Grange, and striking our tents started at 6 o’clock. We marched eighteen miles and went into camp for the night. Our cavalry drove some five hundred rebels out of Holly Springs this morning. The entire army is on the move and is in command of General Grant. It is reported that we are to effect a junction with General Sherman’s army in the rear of Vicksburg.